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Ubuntu Security Notice USN-6517-1
November 27, 2023
perl vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in Perl.
Software Description:
- perl: Practical Extraction and Report Language
Details:
It was discovered that Perl incorrectly handled printing certain warning
messages. An attacker could possibly use this issue to cause Perl to
consume resources, leading to a denial of service. This issue only affected
Ubuntu 22.04 LTS. (CVE-2022-48522)
Nathan Mills discovered that Perl incorrectly handled certain regular
expressions. An attacker could use this issue to cause Perl to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2023-47038)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 23.10:
   perl                            5.36.0-9ubuntu1.1
Ubuntu 23.04:
   perl                            5.36.0-7ubuntu0.23.04.2
Ubuntu 22.04 LTS:
   perl                            5.34.0-3ubuntu1.3
Ubuntu 20.04 LTS:
   perl                            5.30.0-9ubuntu0.5
In general, a standard system update will make all the necessary changes.
References:
   https://ubuntu.com/security/notices/USN-6517-1
   CVE-2022-48522, CVE-2023-47038
Package Information:
   https://launchpad.net/ubuntu/+source/perl/5.36.0-9ubuntu1.1
   https://launchpad.net/ubuntu/+source/perl/5.36.0-7ubuntu0.23.04.2
   https://launchpad.net/ubuntu/+source/perl/5.34.0-3ubuntu1.3
   https://launchpad.net/ubuntu/+source/perl/5.30.0-9ubuntu0.5